Are there any other files in the C:\Program Files\Alwil Software\Avast4\ folder?
If you can find it, how about ashSimpl.exe or ashSimp2.exe
Do you have any other software that can interfere?
Did you have any antivirus before avast!
If so how was it removed?
It may be necessary to run the relevant removal tool for that product.
It seems as though your installation is messed up...
You may have to try a complete re-install.
For a re-installation of avast!:
VERY IMPORTANT - Do not uninstall avast! yet, follow the instructions1. Download the most recent version of
avast!Make sure to download the Full setup file, NOT the 'universal installation file'2. Download the
avast! Un-install Utility3. Disconnect from the net
4. Uninstall avast! through 'add/remove programs'
5. Reboot into safe mode and run the avast! un-install utility
6. Reboot
7. Install the the latest version of avast!
8. Re-connect to the net.
-Scott-